Sierra Mist was a lemon-lime flavored soft drink line. Originally introduced by PepsiCo in 1999, it was eventually made available in all United States markets by 2003. The drink was rebranded as "Mist Twst" in 2016, but reverted to Sierra Mist in 2018. The brand was aimed at competing with The Coca-Cola Company's Sprite brand and Keurig Dr Pepper's 7 Up.
Slice predecessor brand. In January 2023, Pepsi announced the discontinuation of the brand; Sierra Mist has been replaced with successor brand Starry.